Adjustable brake-head mechanism.



x A. H. PEYCKE, ADJUSTABLE BRAKE HEAD MECHANISM.

APPLICATION FILED NOV. 17. l9l-Z.

Patented Feb. 25, 1919..

if? OMA M vz A. H. PEYCKE.

ADJUSTABLE BRAKE HE'AD MECHANISM.

APPLICATION FILED NOV. 17. 191

1,295,366. V Patented Feb. 25, 1919.

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ARMAND H.. PEYCKE, OF CHICAGO, ILLINOIS, AS SIGNOR T AMERICAN STEELFOUNDRIES, OF'CHICAGO, ILLINOIS, A CORPORATION OF NEW JERSEY.

ADJUSTABLE BnA E-HEAoMEc ANrsM.

Application filed November 17, 19 17. Serial No. 202,497.

To all whom it may concern: I

Be it known that 'I, ARMANI) H. PEYCKE, a citizen of the UnitedStates,and resident of Chicago, in the county of Cook and State of Illinois,haveinvented certain new and useful Improvements in Adjustable Brake-Head Mechanism of which the'following is i 'One ofthe objects of theinvention is to improve and simplify means whereby. a brake headnormally may be held yieldably in any given position.

Another object is to connect brake means,

heads and hangers-in a novel manner mak-' ing the same'more durable andat the same time occupying a minimum amount of space.

Another obje'ctis. to provide a novel combinationgof a brake beam, headand hanger adapted to'meet the various requirements for successfulcommercialoperation.

Generally speaking, these and other objects are accomplished byproviding in brake mechanism, the combination of a brake head,

an associated support, and means interposed therebetwfen 7 for adjustably holding the panying sheets ofdrawings in which,

' Figures 1 and 2 are rear and side elevatlons, respectlvely, of brakemechanism em- I bodying my invention;

Figs. 3 and/l are'rear' andside elevations.

of a modification of'my invention;

Figs. 5 and 6 are rear and side elevations of another modification of myinvention, some of the parts in Fig. 6 being shown in section and,

Figs. ,7 and 8 of another modification of my invention, parts beingshown in section in Fig. 8.

Thevarious novel features of my invention will be apparent from thefollowing description and drawings. and will be particularly pointed outin the appended claims.

Referring first to Figs. 1fand 2: of the drawings,. it will be notedthat I-- have pro-'- vided, a brake beam 10 having a trunnion 11 uponwhich is adjustably rotatably mounted a' brake head 12 having side walls13 and .14: with inwardly extendlngbearing portions 15 and 16,"respectively, which receive the trunnionll. Also pivotally mounted onthe are fear and side elevations trunnion -11 is a hanger 17, the uppereye portion of which may be pivoted to any portion of the'truck, thelower portion of the hanger 17 having a bearing 18 which is mounted overthe trunnion ll'intermediate the bearing portions 15 and '16 of thebrake head. braking surface of the brake shoe in concentricity with thetire of the associated wheel Specification of Letters Patent. J PatentedFeb. 25, 1919. I

Inv order at all times to maintain the At'the same time normally thebreak head must not be permitted too free a movement 'ably in adjustedposition or any other position which it may assume inv accordance withworking. conditions. To this" end I have "provided yieldable means whichis interposed between thebrake head and -a suitable supmediate portion21 of the spring plate being curved and in. concentricity with the outersurface off the hanger trunnion bearing 18.

In this particular-instance the spring plate 19 is held inpositionsimply by the pressure -.of the hanger,"there being no"fastening means between the brake head and the spring. Bymeans ofthisai'rang'ement the brake head normally. is yieldably. held in Irelative to the brake beam trunnion. Preferably '.thebrake head shouldbe held yieldproper position and at the same time is per-1 mittedautomatically to adjust itself in ac: cordancewith operating conditions.

In'Figs. 3 and 4 the arrangement is sub stantially the same as' shownin" Figs. 1 and 2, lwith" the exception, however, that the front wallportions 22 .are provided with I integrally formed. lips 23 for thereception of the ends of the spring plate 24 whereby the spring'plate24: is held in the brake head even when the latter'is disassoci'atedwith i the hanger 17. The spring plate 24 may be sprung into place bythe aid-of as'mall rod pried against the l ower' lip- 23. It will-benoted that the 7 ends ofthe spring plate :24 may have a sliding movementin the lips 23 when pressureconditions vary;

v Referring Fig 5. 5 and 6, it Will that the spring plate 25 embraces orsubstantially surrounds the han er trunnion bearing 18, one portion 26oi the .sprmg plate being provided with an aperture 27 through which thehanger 17 passes. The

two intermediate portions 26 and 28 of the spring plate pass uponopposite sides of the hanger trunnion bearing 18 and at their lower endsterminate in tail portions 29 and plate 38, the upper end of which fitsaroun the circular rib 34 cast integrally with the brake head. Theintermediate portion of the spring is provided with an aperture 35 forthe reception of the brake hanger 17, its intermediate section looplngaround the rear portion of the hanger trunnion bearing 18. The lowerportion of the spring plate 33' is held in place by a flat key 36passing through the head.

In. all of these arrangements the brake head is held yieldably by aspring plate engaging the brake head and a hanger trunnion bearingwhereby the brake head automatically may be adjusted and yieldablyretained in adjusted position in accordance with operating conditions.

It is apparent that there may be other modifications of the inventionherein particularly shown and described and it'is my intention to coverall .such modifications lwhich do not depart from the spirit and scopeof the following claims.

I claim:

1. In brake mechanism, the combination .latter for frictionally holdingthe brake head. a 3. In brake mechanism, the combination of a brakehead, a hanger having a trunnion bearing, and resilient means interposedbetween said headand trunnion bearing for yieldably holding said headrelative to said hanger.

4:. In brake mechanism, the combination of a brake beam having atrunnion, a brake head mounted onsaid trunnion, a hanger also mounted onsaid trunnion, and spring means engaging said head and hanger and bentaround a portion of'the latter for fric tionally holding the head in agiven positlOIl- J 5. In brake mechanism. the combination of a brakehead, a hanger having a trunnion bearing interposed between the sidewalls of the head. and spring means engaging said head and trunnionbearing for yieldably holding the head.

6. In brake mechanism, the combination of a brake head,a supportingmember, and

a resilient member having a curved portion engaging said hanger foryieldably holding the brake head in a given position.

7. In brake mechanism, the combination of a brake head having lips. ahanger having a trunnion bearing. and spring means having portionsthereof-engaged by said lips and another portion which is curved aroundthe hanger trunnion bearing for holding the brake head in a givenposition.

Signed at Chicago, Illinois, this 8th day.

of November, 1917.

ARMAND I-I. PEYCKE,

Witnesses:

CHAS. L. BYRON, A. F. WADE.

